The colour difference of transparent surface finish on hydrothermally treated beech wood in the interior

• Autorzy: Vidholdova Zuzana , Slabejova Gabriela , Smidriakova Maria

Identyfikatory

DOI

10.5604/01.3001.0053.8672

• Języki publikacji: EN

Abstrakty

EN

The colour difference of transparent surface finish on hydrothermally treated beech wood in the interior. The paper deals with the influence of ageing of transparent surface finish in the dark and in the light in interior conditions. The colour difference of the tested samples with surface finishes (∆E* ab) was measured after the ageing of native wood and hydrothermally modified wood in the dark and in the light. In the experiment, European beech wood was hydrothermally treated at a temperature of 135 °C under saturated water vapour for 6 hours. Three different types of surface finishes (acrylic-polyurethane, polyacrylic and aldehyde resin, alkyd resin) were applied on the wood surfaces. The colour parameters of the surfaces in the system CIE L*a *b * , chroma ΔC* , and hue angle Δh° were measured immediately after surface finishing and after the ageing in the dark and in the light. The samples were placed behind windows glass in the interior for 60 days. The results of the colour difference ∆E * ab showed that the colour of wood and the colour of the surface finishes was changed after ageing in the dark as well as in the light. The colour difference ∆E * ab was bigger in the light than in the dark. The colour difference was bigger on native wood than on hydrothermally modified wood.

PL

Różnica w kolorze przezroczystego wykończenia powierzchni drewna bukowego poddanego obróbce hydrotermicznej we wnętrzu. Artykuł dotyczy wpływu starzenia przezroczystego wykończenia powierzchni w ciemności i w świetle w warunkach wewnętrznych. Różnica koloru badanych próbek z wykończeniem powierzchni (∆E*ab) została zmierzona po starzeniu drewna rodzimego i drewna modyfikowanego hydrotermicznie w ciemności i w świetle. W eksperymencie europejskie drewno bukowe poddano obróbce hydrotermicznej w temperaturze 135 °C w warunkach nasyconej pary wodnej przez 6 godzin. Na powierzchnie drewna nałożono trzy różne rodzaje wykończeń powierzchni (akrylowo-poliuretanowe, poliakrylowe i żywice aldehydowe, żywice alkidowe). Parametry barwy powierzchni w systemie CIE L*a*b*, chroma ΔC* i kąt barwy Δh° zostały zmierzone bezpośrednio po wykończeniu powierzchni i po starzeniu w ciemności i w świetle. Próbki umieszczono za szybą okienną we wnętrzu na 60 dni. Wyniki różnicy kolorów ∆E*ab wykazały, że kolor drewna i kolor wykończenia powierzchni zmienił się po starzeniu w ciemności i w świetle. Różnica koloru ∆E*ab była większa w świetle niż w ciemności. Różnica koloru była większa na drewnie rodzimym niż na drewnie modyfikowanym hydrotermiczne.

Słowa kluczowe

EN

beech;; colour dark; surface finisz; thermally modified wood

• Wydawca: Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
• Czasopismo: Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology
• Rocznik: 2023
• Tom: No. 122
• Strony: 89--98
• Opis fizyczny: Bibliogr. 42 poz., rys., tab.

Twórcy

autor

Vidholdova Zuzana

• Technical University in Zvolen, Faculty of Wood Sciences and Technology, Department of Wood Technology, Department of Furniture and Wood Products, T.G. Masaryka 24, Zvolen, SK 960 01, Slovakia

autor

Slabejova Gabriela

• Technical University in Zvolen, Faculty of Wood Sciences and Technology, Department of Wood Technology, Department of Furniture and Wood Products, T.G. Masaryka 24, Zvolen, SK 960 01, Slovakia

autor

Smidriakova Maria

• Technical University in Zvolen, Faculty of Wood Sciences and Technology, Department of Wood Technology, Department of Furniture and Wood Products, T.G. Masaryka 24, Zvolen, SK 960 01, Slovakia

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